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Fix SF #762455, segfault when sys.stdout is changed in getattr

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Will backport.
This commit is contained in:
Neal Norwitz 2003-06-29 14:48:32 +00:00
parent 478c10554b
commit c5131bc256
1 changed files with 6 additions and 0 deletions
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6
Python/ceval.c
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@ -1501,6 +1501,11 @@ eval_frame(PyFrameObject *f)
err = -1;
}
}
/* PyFile_SoftSpace() can exececute arbitrary code
if sys.stdout is an instance with a __getattr__.
If __getattr__ raises an exception, w will
be freed, so we need to prevent that temporarily. */
Py_XINCREF(w);
if (w != NULL && PyFile_SoftSpace(w, 0))
err = PyFile_WriteString(" ", w);
if (err == 0)
@ -1528,6 +1533,7 @@ eval_frame(PyFrameObject *f)
else
PyFile_SoftSpace(w, 1);
}
Py_XDECREF(w);
Py_DECREF(v);
Py_XDECREF(stream);
stream = NULL;